US4516191A - Retractable head-light device for automobiles - Google Patents

Retractable head-light device for automobiles Download PDF

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Publication number
US4516191A
US4516191A US06/599,342 US59934284A US4516191A US 4516191 A US4516191 A US 4516191A US 59934284 A US59934284 A US 59934284A US 4516191 A US4516191 A US 4516191A
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US
United States
Prior art keywords
lamp
cover
head
driving
lamp cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US06/599,342
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English (en)
Inventor
Naomune Moriyama
Fumiyuki Ohtani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mazda Motor Corp
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Mazda Motor Corp
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Filing date
Publication date
Application filed by Mazda Motor Corp filed Critical Mazda Motor Corp
Assigned to MAZDA MOTOR CORPORATION reassignment MAZDA MOTOR CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MORIYAMA, NAOMUNE, OHTANI, FUMIYUKI
Application granted granted Critical
Publication of US4516191A publication Critical patent/US4516191A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/05—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights retractable
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18856—Oscillating to oscillating

Definitions

  • the present invention relates to an automobile head-light device and more particularly to a retractable head-light device.
  • retractable head-light devices In automobile industry, in an attempt to make the car body surfaces as flush as possible to thereby improve aeronautical properties, retractable head-light devices have been developed and are going to be widely used.
  • Conventional retractable head-light devices have head lamps mounted on vertically swingable members on car bodies and lamps covers are provided above the head lamps so that they are swung together with the head lamps.
  • the United Kingdom published patent application No. 2099974 proposes an automobile head-light device wherein the head lamp is supported by a parallel link mechanism so that it can be moved in parallelism between the extended and retracted positions maintaining a forwardly directed orientation.
  • This type of arrangement is advantageous in that in the retracted position, light warning signals can be emitted through for example slits or a transparent plate which may appropriately provided on the body.
  • the parallel link mechanism is driven by an electric motor through a crank mechanism.
  • the U.K. Patent application further discloses a lamp cover panel provided above the head lamp to provide a flush body surface in the retracted position. In the drawings of the U.K.
  • an automobile body has a front portion which is of a three-dimensional configuration wherein both side portions are inclined downwards toward laterally outwards. Further, there are many occasions that the side portions are also inclined downwards toward longitudinally forwards.
  • the lamp cover is so designed that its front edge is curved substantially in parallel with the front end contour of the body or with the front bumper as seen a top plan view, the front edge of the lamp cover extends substantially horizontally as seen in a front view giving a good appearance. It should however be noted that in this design, the front edge of the lamp cover will be drooped laterally outwards in the extended position of the head-light device.
  • the hinge axis pivotably mounting the lamp cover rear end on the body may be possible to arrange the hinge axis pivotably mounting the lamp cover rear end on the body to extend substantially horizontally.
  • this arrangement causes a significant misalignment between the rear edge of the lamp cover and the contour of the body. Therefore, it is desirable to make the hinge axis to extend substantially along the body contour but this arrangement will produce a drooping of the front edge of the lamp cover.
  • Another object of the present invention is to provide a retractable head-light device for automobiles in which the front edge of the lamp cover extends substantially horizontally both in the retracted and extended positions giving good appearances.
  • a further object of the present invention is to provide an automobile retractable head-light device having a head lamp cover driving mechanism which can maintain the front edge of the head lamp cover substantially horizontally irrespective of the three-dimensional contour of the body.
  • a retractable head-light device for automobiles comprising head lamp means mounted on an automobile body for movement between an extended position wherein the head lamp means is projected through opening means in the automobile body and directed substantially forwards and a retracted position wherein the head lamp means is retracted within the body, head lamp cover means having rear end portion mounted on the body for vertical swingable movements between an extended position wherein the lamp cover means uncovers said opening means in the body and a retracted position wherein the lamp cover means closes said opening means to provide a substantially flush body surface, lamp driving means for driving said head lamp means between said extended and retracted positions of the heat lamp means, cover driving means for driving said lamp cover means between said extended and retracted positions in response to movements of the head lamp means, said cover driving means including a pair of cover driving links disposed at the opposite sides of the lamp cover means, each of said cover driving links having one end connected with said lamp cover means and the other end with one of said head lamp means and said lamp driving means so that the lamp cover
  • the lamp driving means includes linkage means mounting said head lamp means on the body and motor means for driving the linkage means.
  • the cover driving links may then be connected with the linkage means.
  • the linkage means may include a parallel link mechanism for moving the head lamp means in parallelism between the retracted and extended positions so that the head lamp means is oriented forwards even in the retracted position.
  • slit means may be formed in front of the head lamp means in the retracted position so as to allow the warning light signals to pass through.
  • the slit means may be associated with slit cover means for closing the slit. Actuating means may then be provided for actuating the slit cover means to open the slit means whenever warning light switch means is actuated.
  • FIG. 1 is a fragmentary perspective view of an automobile having retractable head-light devices
  • FIG. 2 is a front view showing the left hand head-light device in the extended position
  • FIG. 3 is a top plan view of the head-light device with the lamp cover removed to show the details
  • FIG. 4 is a vertical sectional view of the heat-light device
  • FIG. 5 is an exploded perspective view of the head-light device
  • FIG. 6 is a diagrammatical illustration of geometry of movements of the lamp cover
  • FIG. 7 is a sectional view showing details of the pillow ball device for mounting the lamp cover plate.
  • FIG. 8 is a sectional view similar to FIG. 4 but showing another embodiment.
  • the automobile shown therein includes a body 1 which includes a front portion 1a having a three-dimensional curvature inclined downwards both longitudinally forwards and laterally outwards.
  • a front portion 1a having a three-dimensional curvature inclined downwards both longitudinally forwards and laterally outwards.
  • head-light devices 2 In the front portion, there are provided at the opposite side portions with head-light devices 2.
  • Each of the head-light devices 2 includes a lamp 3 for projecting beams of illuminating light longitudinally forwardly.
  • Attached to the head lamp 3 is a frame bracket 5 which is connected with a parallel linkage 8 including an upper link 6 and a lower link 7.
  • the upper link 6 is of a generally H-shaped configuration having a pair of parallel link arms 6a and a connecting leg 6b connecting the intermediate portions of the link arms 6a.
  • the link arms 6a are connected at the front ends to the frame bracket 5 and at the rear ends to a mounting bracket 9 on the body 1.
  • the lower link 7 is of a generally H-shaped configuration having a pair of parallel link arms 7a and a connecting leg 7b connecting the link arms 7a together.
  • the link arms 6a are connected at the front ends to the frame bracket 5 and at the rear ends to the mounting bracket 9.
  • the link arms 6a and the link arms 7a are parallel with each other.
  • the body 1 is formed with an opening 4 through which the head lamp 3 is moved between a retracted position P 1 shown by phantom lines and an extended or projected position P 2 shown by solid lines in FIG. 4. Since the head lamp 3 is mounted through the parallel links 6 and 7, the head lamp 3 can be moved without changing its orientation and maintained at the forwardly directed position both in the retracted and extended positions P 1 and P 2 .
  • the mounting bracket 9 carries a laterally extending shaft 10 at the lower portion thereof.
  • the shaft 10 has arm members 11 and 12 which are secured thereto.
  • the arm member 11 has a free end connected through a first link 13 with an intermediate portion of one of the link arms 7a in the lower link 7.
  • the arm member 12 has a free end connected through a second link 14 with a rotating arm 15a of an electric driving device 15.
  • the head lamp 3 there is a lamp cover panel 16 which has a mounting plate 17 secured thereto.
  • the mounting plate 17 is provided at the rear end portion with a bracket 17a through which the mounting plate 17 and the lamp cover panel 16 are hinged to the mounting bracket 9 on the body 1 through a pillow ball device 18 for vertical swinging provements and twisting movements.
  • the pillow ball device 18 includes a pillow ball 18a mounted on the bracket 17a by means of a bolt 18d and a ball receptacle 18c provided on a bracket 18b secured to the bracket 9.
  • the pillow ball 18a is received by the receptacle 18c for rotation so as to permit the aforementioned movements of the lamp cover panel 16.
  • the mounting plate 17 is also formed at an intermediate portion of one side with a lug 17b and at an intermediate portion of the other side with a lug 17c.
  • An outboard lamp cover driving link 20 is connected at the upper end with the lug 17b through a ball joint 19 and at the lower end with one of the link arms 7a of the lower link 7 through a ball joint 21.
  • An inboard lamp cover driving link 23 is connected at the upper end with the lug 17c through a ball joint 22 and at the lower end with the other of the link arms 7a of the lower link 7 through a pin and bush assembly 24.
  • the lower ends of the lamp cover driving links 20 and 23 are substantially at the same level and the lamp cover panel 16 is driven through this mechanism together with the lamp 3.
  • the outboard lamp cover driving link 20 is larger in length than the inboard lamp cover driving link 23 whereas the outboard lug 17b is smaller in length than the inboard lug 17c.
  • the lengths of the links 20 and 23 and the lugs 17b and 17c are determined so that the lamp cover panel 16 is laid substantially flush with the contour of the automobile body 1 in the retracted position. In the retracted position, the links 20 and 23 are substantially parallel with each other.
  • the lamp cover panel 16 Since the lengths of the outboard lamp cover driving link 20 and the outboard lug 17b have the lengths which have the aforedescribed relationship with the lengths of the inboard lamp cover driving link 23 and the inboard lug 17c, the lamp cover panel 16 is twisted about the pillow ball 18 when it is moved to the extended position so that the leading edge 16a of the lamp cover panel 16 is maintained substantially horizontally.
  • the lamp cover panel 16 is of such a length that a slit 25 is formed in front of the lamp 3 in the retracted position when the cover panel 16 is in the retracted position.
  • a cover or closure panel 26 is provided for closing the slit 25.
  • the closure panel 26 is hinged at the front edge portion so that it is movable between a closed position as shown by phantom lines in FIG. 4 and an open position as shown by solid lines.
  • a solenoid type actuator 27 is provided in order to drive the closure panel 26 between the closed and open positions.
  • an actuation of an appropriate switch turns the lamp on and at the same time energizes the actuator 27 to move the closure 26 to the open position to thereby open the slit 25.
  • the light beams from the lamp 3 are projected forwards through the slit 25.
  • the head lamp 3 is moved to the extended position through an actuation of the driving device 15.
  • the lamp cover panel 16 is swung upward through the cover driving links 20 and 23.
  • the outboard link 20 swingably move by an angular extent which is larger than the angle through which the inboard link 23 swings as shown in FIG. 6 because the lug 17c to which the inboard link 23 is connected is longer than the lug 17b to which the outboard link 20 is connected.
  • This will produce a twisting movement of the lamp cover panel 16. Since the axis of the pillow ball 18 is inclined downwards toward outboard direction so that the leading edge 16a of the lamp cover panel 16 will be inclined by having a difference H' in the level between the inboard and outboard ends of the leading edge 16a if the lamp cover panel 16 is upwardly swung without such twist.
  • the aforementioned twist of the lamp cover panel 16 will decrease the difference in the levels of the inboard and outboard ends of the leading edge 16a of the lamp cover panel 16 for example to a value H.
  • the leading edge 16a presents an appearance that it is maintained substantially horizontally, that is, substantially parallelly with the upper edge of the head lamp in the extended position.
  • the slit 25 in front of the head lamp 3 in the retracted position is closed by the closure 26. It should however be noted that the closure 26 may be omitted or substituted by a transparent panel.
  • FIG. 8 shows another embodiment which is substantially identical to the previous embodiment so that corresponding parts are designated by the same reference numerals as in the previous embodiment.
  • the lamp cover driving links 20 and 23 are connected at the lower ends not to the link 7 but to the frame bracket 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
US06/599,342 1983-04-15 1984-04-12 Retractable head-light device for automobiles Expired - Fee Related US4516191A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP58-67612 1983-04-15
JP58067612A JPS59192633A (ja) 1983-04-15 1983-04-15 自動車用ヘツドランプ

Publications (1)

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US4516191A true US4516191A (en) 1985-05-07

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Family Applications (1)

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US06/599,342 Expired - Fee Related US4516191A (en) 1983-04-15 1984-04-12 Retractable head-light device for automobiles

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US (1) US4516191A (enrdf_load_stackoverflow)
JP (1) JPS59192633A (enrdf_load_stackoverflow)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4622622A (en) * 1982-10-08 1986-11-11 Honda Giken Kogyo Kabushiki Kaisha Headlamp system for small vehicles
US4630179A (en) * 1984-03-29 1986-12-16 Aisin Seiki Kabushiki Kaisha Retractable lamp structure
US4665469A (en) * 1986-03-07 1987-05-12 Eaton Corporation Headlight adjuster gear assembly
US4737891A (en) * 1986-11-17 1988-04-12 Accurate Threaded Fasteners, Inc. Support and adjustment mechanism for vehicle headlamp
US4737893A (en) * 1987-08-17 1988-04-12 Chrysler Motors Corporation Headlight door actuating mechanism
US4774639A (en) * 1985-07-18 1988-09-27 Robert Bosch Gmbh Headlight for power vehicle
US4785382A (en) * 1986-12-12 1988-11-15 Aisin Seiki Kabushiki Kaisha Retractable lamp device for vehicles
US4802065A (en) * 1987-08-27 1989-01-31 Minter Ronald H Emergency lighting fixture
EP0309417A1 (en) * 1987-09-23 1989-03-29 I.DE.A. S.p.A. INSTITUTE OF DEVELOPMENT IN AUTOMOTIVE ENGINEERING A retractable headlamp for motor vehicles
US4821155A (en) * 1988-06-23 1989-04-11 General Motors Corporation Compact actuator for a concealed headlamp assembly
US4860175A (en) * 1988-08-15 1989-08-22 General Motors Corporation Actuator mechanism for headlamp
US5050049A (en) * 1989-07-25 1991-09-17 Asmo Co. Ltd. Automobile headlamp system
US5142465A (en) * 1988-07-29 1992-08-25 Asahi Kogaku Kogyo Kabushiki Kaisha Strobe popping-up apparatus
US5355286A (en) * 1993-11-09 1994-10-11 General Motors Corporation Retractable headlamp assembly
US20080239709A1 (en) * 2007-03-29 2008-10-02 Thomas & Betts International, Inc. Concealed Emergency Lighting Fixture with Full Rotation of Door
US20130155709A1 (en) * 2010-08-18 2013-06-20 Seoul Semiconductor Co., Ltd. Led illuminator in hood of vehicle
FR3108704A1 (fr) * 2020-03-27 2021-10-01 Valeo Vision Dispositif d’éclairage de véhicule automobile incorporant un module lumineux mobile
FR3108706A1 (fr) * 2020-03-27 2021-10-01 Valeo Vision Dispositif d’éclairage de véhicule automobile incorporant un module lumineux mobile
US11518327B2 (en) * 2019-11-04 2022-12-06 Naade, Inc. Vehicle bumper with selectively deployable integrated light bar
EP4166392A1 (en) * 2021-10-13 2023-04-19 Volvo Car Corporation Cover unit and lighting mounting for vehicle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6125241U (ja) * 1984-04-13 1986-02-14 フタバ産業株式会社 リトラクタブルヘツドランプ装置
JP2008196346A (ja) * 2007-02-09 2008-08-28 Mazda Motor Corp 摺動部材及びその製造方法

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3387125A (en) * 1965-10-13 1968-06-04 Gen Motors Corp Vehicle headlamp assembly
US3532870A (en) * 1967-04-25 1970-10-06 Citroen Sa Andre Retractable headlamps with mirror
DE1630909A1 (de) * 1967-03-10 1971-02-25 Porsche Kg Scheinwerfer fuer Fahrzeuge,insbesondere Kraftfahrzeuge
US3626174A (en) * 1968-08-09 1971-12-07 Lucas Industries Ltd Headlamp assemblies
US3742205A (en) * 1971-09-20 1973-06-26 Bombardier Ltd Retractable head lamp assembly
US4139245A (en) * 1977-06-03 1979-02-13 The Heim Universal Corp. Vibration damping in machine element bearings
US4243192A (en) * 1978-12-04 1981-01-06 Mcdonnell Douglas Corporation Ball pivot thrust bearing flex joint
US4246628A (en) * 1977-10-13 1981-01-20 Toyo Kogyo Co., Ltd. Driving mechanism for retractable lamps of motor vehicles
US4282561A (en) * 1978-03-07 1981-08-04 Toyo Kogyo Co., Ltd. Automobile headlight lighting apparatus
GB2099974A (en) * 1981-05-06 1982-12-15 Honda Motor Co Ltd Motor vehicle headlights
US4380789A (en) * 1980-11-28 1983-04-19 General Motors Corporation Actuator for a concealable headlamp assembly

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3387125A (en) * 1965-10-13 1968-06-04 Gen Motors Corp Vehicle headlamp assembly
DE1630909A1 (de) * 1967-03-10 1971-02-25 Porsche Kg Scheinwerfer fuer Fahrzeuge,insbesondere Kraftfahrzeuge
US3532870A (en) * 1967-04-25 1970-10-06 Citroen Sa Andre Retractable headlamps with mirror
US3626174A (en) * 1968-08-09 1971-12-07 Lucas Industries Ltd Headlamp assemblies
US3742205A (en) * 1971-09-20 1973-06-26 Bombardier Ltd Retractable head lamp assembly
US4139245A (en) * 1977-06-03 1979-02-13 The Heim Universal Corp. Vibration damping in machine element bearings
US4246628A (en) * 1977-10-13 1981-01-20 Toyo Kogyo Co., Ltd. Driving mechanism for retractable lamps of motor vehicles
US4282561A (en) * 1978-03-07 1981-08-04 Toyo Kogyo Co., Ltd. Automobile headlight lighting apparatus
US4243192A (en) * 1978-12-04 1981-01-06 Mcdonnell Douglas Corporation Ball pivot thrust bearing flex joint
US4380789A (en) * 1980-11-28 1983-04-19 General Motors Corporation Actuator for a concealable headlamp assembly
GB2099974A (en) * 1981-05-06 1982-12-15 Honda Motor Co Ltd Motor vehicle headlights
US4471410A (en) * 1981-05-06 1984-09-11 Honda Giken Kogyo Kabushiki Kaisha Retractable headlight apparatus for motorcar

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4622622A (en) * 1982-10-08 1986-11-11 Honda Giken Kogyo Kabushiki Kaisha Headlamp system for small vehicles
US4630179A (en) * 1984-03-29 1986-12-16 Aisin Seiki Kabushiki Kaisha Retractable lamp structure
US4774639A (en) * 1985-07-18 1988-09-27 Robert Bosch Gmbh Headlight for power vehicle
US4665469A (en) * 1986-03-07 1987-05-12 Eaton Corporation Headlight adjuster gear assembly
US4737891A (en) * 1986-11-17 1988-04-12 Accurate Threaded Fasteners, Inc. Support and adjustment mechanism for vehicle headlamp
US4785382A (en) * 1986-12-12 1988-11-15 Aisin Seiki Kabushiki Kaisha Retractable lamp device for vehicles
US4737893A (en) * 1987-08-17 1988-04-12 Chrysler Motors Corporation Headlight door actuating mechanism
US4802065A (en) * 1987-08-27 1989-01-31 Minter Ronald H Emergency lighting fixture
WO1989002562A1 (en) * 1987-08-27 1989-03-23 Chloride Group Plc Emergency lighting fixture
EP0309417A1 (en) * 1987-09-23 1989-03-29 I.DE.A. S.p.A. INSTITUTE OF DEVELOPMENT IN AUTOMOTIVE ENGINEERING A retractable headlamp for motor vehicles
US4821155A (en) * 1988-06-23 1989-04-11 General Motors Corporation Compact actuator for a concealed headlamp assembly
US5142465A (en) * 1988-07-29 1992-08-25 Asahi Kogaku Kogyo Kabushiki Kaisha Strobe popping-up apparatus
US4860175A (en) * 1988-08-15 1989-08-22 General Motors Corporation Actuator mechanism for headlamp
US5050049A (en) * 1989-07-25 1991-09-17 Asmo Co. Ltd. Automobile headlamp system
US5355286A (en) * 1993-11-09 1994-10-11 General Motors Corporation Retractable headlamp assembly
US20080239709A1 (en) * 2007-03-29 2008-10-02 Thomas & Betts International, Inc. Concealed Emergency Lighting Fixture with Full Rotation of Door
US20130155709A1 (en) * 2010-08-18 2013-06-20 Seoul Semiconductor Co., Ltd. Led illuminator in hood of vehicle
US9457713B2 (en) * 2010-08-18 2016-10-04 Seoul Semiconductor Co., Ltd. LED illuminator in hood of vehicle
US11518327B2 (en) * 2019-11-04 2022-12-06 Naade, Inc. Vehicle bumper with selectively deployable integrated light bar
FR3108704A1 (fr) * 2020-03-27 2021-10-01 Valeo Vision Dispositif d’éclairage de véhicule automobile incorporant un module lumineux mobile
FR3108706A1 (fr) * 2020-03-27 2021-10-01 Valeo Vision Dispositif d’éclairage de véhicule automobile incorporant un module lumineux mobile
EP4166392A1 (en) * 2021-10-13 2023-04-19 Volvo Car Corporation Cover unit and lighting mounting for vehicle
US11781722B2 (en) 2021-10-13 2023-10-10 Volvo Car Corporation Cover unit and lighting mounting for vehicle

Also Published As

Publication number Publication date
JPS6260299B2 (enrdf_load_stackoverflow) 1987-12-15
JPS59192633A (ja) 1984-11-01

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